PHP Railway Flow Based Programming

This talk is about Railway Flow Based Programming based from the work of Anton Mishchuk

https://anton-mishchuk.medium.com/railway-flow-based-programming-with-flowex-ef04fd338e41

Here we present the concept and show an implementation in PHP

Source code associated to this talk

https://github.com/darkwood-fr/flow

Article associated to this talk

https://blog.darkwood.fr/article/php-railway-flow-based-programming

Video associated to this talk

https://www.youtube.com/watch?v=u7LTuBRlITA

Transcript

1. Railway Flow Based Programming
   @matyo91
   25-03-2021
   In PHP
   

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2. 25-03-2021 @matyo91
   Why ?
   

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3. Flow Based Programming
   @matyo91
   Basic concepts
   25-03-2021
   

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4. @matyo91
   25-03-2021
   Programming
   Paradigm
   

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5. @matyo91
   25-03-2021
   Express a
   problem in terms
   of transforms on
   streams of data
   

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6. Two layers in FBP application
   @matyo91
   @matyo91
   25-03-2021
   Botton layer : « business logic »
   
   
   Top Layer : « communication logic »
   

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7. Advantages
   @matyo91
   @matyo91
   25-03-2021
   

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8. Railway Oriented Programming
   @matyo91
   Design pattern
   25-03-2021
   

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9. Request : (userId, name, email)
   
   
   Name is blank, email is not valid
   
   
   User DB not found
   
   
   Authorization error Timeout
   Exemple
   @matyo91
   Receive request
   Validate and canonicalize request
   Update existing user record
   Send verification email
   Return result to user
   25-03-2021
   

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10. @matyo91
    25-03-2021
    

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11. @matyo91
    25-03-2021
    

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12. Functional
    approach for
    managing errors
    @matyo91
    25-03-2021
    

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13. Railway Flow Based Programming
    @matyo91
    Introduction
    25-03-2021
    

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14. @matyo91
    AddOne MulByTwo MinusThree
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15. @matyo91
    addOne MulByTwo MinusThree
    Supervisor
    Producer Consumer
    Error
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16. @matyo91
    AddOne
    MulByTwo
    MinusThree
    Producer
    Consumer
    Client
    25-03-2021
    Supervisor
    IP {number:3}
    IP {number:3}
    IP {number:4}
    IP {number:5}
    IP {number:5}
    IP {number:8}
    

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17. @matyo91
    Producer
    Consumer
    Client
    Client
    Client Rails
    25-03-2021
    Supervisor
    IP
    IP
    IP
    IP
    IP
    IP
    IP
    IP
    

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18. @matyo91
    AddOne MulByTwo
    MinusThree
    Producer Consumer
    Error
    MulByTwo
    MulByTwo
    MinusThree Error
    25-03-2021
    

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19. Implementation
    @matyo91
    PHP
    25-03-2021
    

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20. Symfony Messenger
    @matyo91
    @matyo91
    25-03-2021
    

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21. Supervisor
    Symfony Messenger
    @matyo91
    @matyo91
    25-03-2021
    Client
    IP IP
    IP
    IP
    Rails & Error
    Consumer
    Producer
    

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22. Asynchron
    @matyo91
    @matyo91
    25-03-2021
    

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23. Demo
    @matyo91
    25-03-2021
    PHP
    

    https://github.com/darkwood-fr/railway-fbp
    
    
    

    Elixir
    
    
    https://github.com/antonmi/flowex
    

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24. Hello!
    
    
    I Am Mathieu Ledru
    You can contact me at @matyo91
    @matyo91
    Thanks!
    Any questions?
    25-03-2021
    

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